Square Cash appears on invite-only site, lets you send money with an email

Square's been venturing beyond those tiny credit card swipers as of late. Last week, the company introduced its nifty $299 Stand POS system for iOS, and now it appears to be branching out to individuals, with a to-be-announced service called Square Cash. There's not much info to share at this point -- TechCrunch recently discovered a dedicated landing page for the new service, which looks to be invite only at this point. There does seem to be an option to request an invitation, but the button is...